A team of researchers with members from France, Great Britain and the U.S. has found that lead concentrations in drinking water in Rome, during the height of the Roman Empire were 100 times that of local spring waters. In ...

Uranium poses a serious risk of groundwater contamination at the Hanford Site. But most previous experimental studies addressing this important issue were performed over short-time periods, focusing on the uranium that is ...

(Phys.org) —A fraction of the carbon that finds its way into Earth's oceans—the black soot and charcoal residue of fires—stays there for thousands for years, and a new first-of-its-kind analysis shows how some black ...

Using sediments from a remote lake, researchers from Brown University have assembled a 60,000-year record of rainfall in central Indonesia. The analysis reveals important new details about the climate history of a region ...

A 70 million year old fossil found in the Late Cretaceous sediments of Alaska reveals a new small tyrannosaur, according to a paper published in the open-access journal PLOS ONE on March 12, 2014 by co-authors Anthony Fiorillo ...

A Dartmouth-University of Connecticut study of the northeast United States shows that methylmercury concentrations in estuary waters—not in sediment as commonly thought—are the best way to predict mercury contamination ...

Researchers at Grand Valley State University's Annis Water Resources Institute are learning more about the impact invasive zebra mussels and native aquatic insect larvae have on the risk of algae blooms in two West Michigan ...

It was climate that killed many of the large mammals after the latest Ice Age. But what more specifically was it with the climate that led to this mass extinction? The answer to this is hidden in a large number of sediment ...

Sediment

Sediment is any particulate matter that can be transported by fluid flow, and which eventually is deposited.

Sediments are most often transported by water (fluvial processes) transported by wind (aeolian processes) and glaciers. Beach sands and river channel deposits are examples of fluvial transport and deposition, though sediment also often settles out of slow-moving or standing water in lakes and oceans. Desert sand dunes and loess are examples of aeolian transport and deposition. Glacial moraine deposits and till are ice transported sediments.